/Engine/Source/Editor/UnrealEd/Public/Subsystems/AssetEditorSubsystem.h
Opens an asset by path
void OpenEditorForAsset ( const [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) & AssetPath, const [EAssetTypeActivationOpenedMethod](API\Developer\AssetTools\EAssetTypeActivationOpenedMethod) OpenedMethod )